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Purpose of a cursor in T-SQL?
The purpose of a cursor in a database is to provide an option to the programmer using which he/she can iterate through the contents of a table one record at a time and use it for processing. A sample cursor can be created using the below statement DECLARE cursor_employee CURSOR FOR SELECT * FROM tbl_employee_info The above cursor cursor_employee will contain the contents of the table tbl_employee_info and can be used by the programmer for manipulation one record at a time. A Cursor may act like a DataStructure . it stores the record coming from the base table . in if we want ot retrive the date very fastly we will user cursors.
How do you add or delete records to a database table?
It depends on the database, but most use some version of something called "structured query language" or SQL, and in that the normal command for adding a record is INSERT while the command for deleting records is DELETE. Look those up in the documentation for your particular database to find the exact syntax it's expecting.
How do you create table in sql?
create table "table-name" -> exclude the quotes when creating the tableafter this a message will come : table created(row_name data type(limit of characters),... )for example(name varchar2(20)).This will make a column(attribute) in your table with the name "name" and data type varchar with character limit of 20.you can further add more attributes in the same manner.to insert values in the table you need this:insert into "table name" values(123,qwew,wsd,2342)the data in the brackets above depends on the attributes of your table.and now you have created a simple table.you can update, delete, alter, drop the table.
What does a SQL Delete statement allow?
An SQL Delete statement is a code used for programming. It allows you to delete a single record or multiple records from a graph or table. These codes can be very useful.
What are the first 4 multiples of 7?
7, 14, 21, and 28 learn your maths table it's easy just add 7
What are 2 ways to add a record to a table in Access?
You can enter it through the datasheet. You can enter it through a form. You can also use an Append Query to add records to a table from another table.
What is an input form in Excel?
When data is in a table a form can be used to enter the data and it will add a new record to the table. This can be accessed from the Data menu or tabs.
How do you add one or more fields to a table in oracle?
Use the following sql to add columns to an existing table (NOTE: all new columns will be appended to the end of the record DDL) alter table table_name add ( column1_name column1_datatype column1_constraint, column2_name column2_datatype column2_constraint, column3_name column3_datatype column3_constraint );
What relationship describes when a record from one table is related to several records in another table.?
One-to-many relationship. This means that for every record in the first table, there can be multiple related records in the second table, but each related record in the second table corresponds to only one record in the first table.
How to add a record in visual basic?
How to add a record in Visual basic?
What is meant by record in a table?
Record is synonym for the row.
What year was the first billiard table made?
There is no record of the first billiards table. The first billiards table on record was built in France and in use in 1429.
Can a table record be displayed?
a. by selecting a table in Datasheet view
How many gallons of salt would make a egg float?
u need to have a table spoon and salt add the salt and record how much it takes your welcome
The field that uniquely identifies a record in a table is called?
The field that uniquely identifies a record in a table is called the primary key. It ensures that each record in a table is distinct and can be easily located and referenced.
What is used to add another row to the table?
An INSERT query is used to add a row to a table.
What is the record speed for clearing a billiard table?
In most pocket billiards games, the table does not get cleared, so no record can exist.
